Awsmsniper commented on PR #22501:
URL: https://github.com/apache/pulsar/pull/22501#issuecomment-2055610103
> > #20115 fixes the classloader in TopicSchema, but for Kubernetes Runtime,
the classloader may be different from the other runtimes. Which caused the
SerDe to fail to init in Kubernetes Runtime.
>
> @freeznet A question about the description: Regarding "but for Kubernetes
Runtime, the classloader may be different from the other runtimes".
>
> * Is it "may be different" meaning that sometimes it succeeds and
sometimes fails?
>
> * or do you mean to say that it is always different and always fails in
Kubernetes Runtime?
I'm not sure if @freeznet he has this issue every time on Kubernetes, but I
have encountered it when using the extension SDK to connect to Redis cluster. I
am currently unable to use functions on Kubernetes to complete my requirements.
```
2024-04-15T06:18:32,716+0000 [public/default/demo-function-las-auth-0] ERROR
org.apache.pulsar.functions.instance.JavaInstanceRunnable - Sink open produced
uncaught exception:
java.lang.ClassNotFoundException: com.alibaba.fastjson2.JSONObject
at java.net.URLClassLoader.findClass(URLClassLoader.java:445) ~[?:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:592) ~[?:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
at
org.apache.pulsar.common.util.Reflections.loadClass(Reflections.java:310)
~[io.streamnative-pulsar-common-3.2.1.2.jar:3.2.1.2]
at
org.apache.pulsar.functions.sink.PulsarSink.initializeSchema(PulsarSink.java:437)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:3.2.1.2]
at
org.apache.pulsar.functions.sink.PulsarSink.open(PulsarSink.java:362)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:3.2.1.2]
at
org.apache.pulsar.functions.instance.JavaInstanceRunnable.setupOutput(JavaInstanceRunnable.java:1070)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:?]
at
org.apache.pulsar.functions.instance.JavaInstanceRunnable.setup(JavaInstanceRunnable.java:261)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:?]
at
org.apache.pulsar.functions.instance.JavaInstanceRunnable.run(JavaInstanceRunnable.java:305)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:?]
at java.lang.Thread.run(Thread.java:840) ~[?:?]
2024-04-15T06:18:32,725+0000 [public/default/awifi-function-las-auth-0]
ERROR org.apache.pulsar.functions.instance.JavaInstanceRunnable -
[public/default/demo-function-las-auth:0] Uncaught exception in Java Instance
java.lang.ClassNotFoundException: com.alibaba.fastjson2.JSONObject
at java.net.URLClassLoader.findClass(URLClassLoader.java:445) ~[?:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:592) ~[?:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]
at
org.apache.pulsar.common.util.Reflections.loadClass(Reflections.java:310)
~[io.streamnative-pulsar-common-3.2.1.2.jar:3.2.1.2]
at
org.apache.pulsar.functions.sink.PulsarSink.initializeSchema(PulsarSink.java:437)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:3.2.1.2]
at
org.apache.pulsar.functions.sink.PulsarSink.open(PulsarSink.java:362)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:3.2.1.2]
at
org.apache.pulsar.functions.instance.JavaInstanceRunnable.setupOutput(JavaInstanceRunnable.java:1070)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:?]
at
org.apache.pulsar.functions.instance.JavaInstanceRunnable.setup(JavaInstanceRunnable.java:261)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:?]
at
org.apache.pulsar.functions.instance.JavaInstanceRunnable.run(JavaInstanceRunnable.java:305)
~[io.streamnative-pulsar-functions-instance-3.2.1.2.jar:?]
at java.lang.Thread.run(Thread.java:840) ~[?:?]
```
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